1. State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture Northwest A&F University Xianyang 712100 China
2. Shanghai Center for Plant Stress Biology, CAS Center of Excellence in Molecular Plant Sciences Chinese Academy of Sciences Shanghai 200032 China
3. Department of Horticulture and Landscape Architecture Purdue University West Lafayette Indiana 47907 USA
4. School of Agriculture and Food Sciences University of Queensland Brisbane Queensland 4072 Australia